I'm probably doing something wrong but I dunno what at this point. I have 2 SD modules sharing power, ground, MOSI, MISO, and SCK, each with separate CS. I want to be able to keep both open even if only 1 runs at a time. With CD library you get an SDClass object instantiated for you, SD, that can…

Run multiple SD cards on a single SPI bus.

fat16lib December 4, 2012, 11:22pm 13

Bit-bang SDIO? Wow what a choice!

Have you seen the protocol?